When a number is made up of more than one digit we can use a place value chart with headings, like ones, tens, hundreds and thousands, to help us understand the value of each digit. Using a place ...

We can also show this as a part-whole model and a bar model. Each way of showing the calculation shows part + part = whole. 75 is the whole number and 43 and 32 are the parts. When a number is ...